East Dennis is a village and census-designated place (CDP) in the town of Dennis in Barnstable County, Massachusetts, United States.

East Dennis is bounded to the north by Cape Cod Bay and to the west by the town of Brewster.

[3] As of the census[7] of 2000, there were 3,299 people, 1,516 households, and 1,027 families residing in the CDP.

28.8% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older.

Notable current and former residents of East Dennis include: